Cap-feeding attachment for riveting-machines.



A. L. LILLEY. CAP FEEDING ATTACHMENT FOR RIVETING MACHINES.

APPLICATION FILED MAR. 10, I9I4.

Patented May 9,1916.

3 SHIEETS-SHEE A. L. LILL EY1 GAP FEEDING ATTACHMENT FOR RIVETING MACHINES.

APPLICATION FILED MAR. 10, 1914.

Patented M11319, 1916.

3 SHEETSSHEET 2.

A. L. LILLEY. CAP FEEDING ATTACHMENT FOR RIVETING MACHINES.

APPLICATION FILED MAR. 10, I914.

Patented May 9, 1916.

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3 SHEETS-SHEET 3.

ALFRED L. LILLEY,-OF HARTFORD, CONNECTICUT.

GAP-FEEDING ATTACHMENT FOR RIVETING-MACHINES.

Application filed March 10,

To all 1/: from it may concern.

lie it known that I, Amman L. LiLLnY,a citizen of the United States, residing at l'la-rttord, in the county of Hartford and State of Connecticut, have invented a new and useful Improvement in Capd eeding Attachments for Riveting-Machines, of which the following is a specification.

This invention relates more particularly to those riveting machines which feed and set such tubular rivets and caps as are utilized tor fastening togethe" harness and other leather parts. although, of course, the invention is applicable to machines using different forms of rivets 't'or fastening together other materials.

Many kind of machines have been devised for feeding and setting various types of solid and tubular rivets and burs. It is com mrtively easy to automatically feed both the rivets and burs when it makes no (liii'erenee which side up the burs land on the anvil, but tar as is known, no one has devised a successful machi. e which will' automatically ieed both rivets and rounded hollow caps, which latter must, to fit the former. always come right side up on the anvil. It has been found necessary to place such hollow caps on the anvil by hand in order to be sure that they are in proper position for receiving or being applied to'the rivets.

The object of this invention is to provide a simple attachment which can be readily applied to a machine having means for automatically feeding headed rivets, and that will automatically feed to the anvil only such rounded hollow shell-like caps as are in the proper position to be correctly applied to and set on the ends of the rivets.

In the accompanying drawings, Figure 1 shows a side elevation of the principal mechanisms of a rivet machine provided with an attachment, which embodies this invention, for feeding and setting on. the ends of the rivets rounded hollow caps. Fig. 2 shows a front elevation of the same. Fig. 3 shows one of the rivets and one oi the caps before. being put together. Fig. 4 shows a rivet and cap after having been fed and set by this machine. Fig. shows on a larger scale a longitudinal vertical. section oi a portion of the cap hopper and teed belt. and a part oi the upper end of the cap teed-trough. his. 6 shows a transverse vertical section ol? the cap hopper and feed Specification of Letters Patent.

Patented May 9*, 1916.

1914.. Serial No. 823,701.

belt. Fig. 7 shows a sectional view of the lower end of the cap teed-trough and the. guide through which the caps are lifted by the anvil when they are to be applied to the en ls of the rivets.

' The headed rivets 1, Fig. are deposited promiscumisly in the. hopper 2 and by common mechanism are selected and allowed to feed through the trough 3 down to the delivery mouth r. From this month the rivets are Forced down by the punch 5, which is attached to the lower end of the slide 6 that by a link 7 is connected with the upper end of the lever 8. This lever is pivoted on the top of the yoke-shaped. bracket 9 and its lower end is raised and lowered by any suitable means, usually a crank mechanism. The yoke-shaped bracket is mounted on the top of a supporting standard 10. These parts are old and well known, and consequently are not herein shown and described in detail.

Attached to one. side of the bracket is a hopper 11 into which the caps 12, Fig. 3, are thrown in apromiscuous mass. These caps are hollow shells 'whichare circular in outline and have rounded edges with an opening in one side. Of course it is essential that the open sides of the caps be presented to the ends of the rivets in order that the ends of the rivets may be inserted into the caps. or the caps be forced onto the ends of the rivets, as shown in Fig. 4.

Below the bottom of the hopper is an endless belt 13 with pointed pins 14 projecting there-from. These pins are desirably small screws. The pins project from the belt npwardly through a slot in the bottom of the hopper. The belt passes around two drums l5 and 16 which are desirably arranged so that the belt will travel on an incline below the bottom oi the hopper. The drum 15 is mounted on an axle 17 which is provided with a pulley 1.8 that is by a belt-'19 conneeted with a pulley 20 on the shaft 21 which operates the rivet feed. This shaft 21 is intermittently rotated by pawls 22 mounted on arms which by links 24 are cmmeeted with a bar 25 that projects from the punch operating lever 8 sothat as the lever moves up and down, the pawls through the mechanism described, operate both the rivet Feed and the belt which feeds the caps.

The. pulley 20 is 'trictionally connected with- 

